ISL68227IRAZ datasheet(39/100 Pages) RENESAS

39 / 100 page

ISL68227

10. PMBus Command Detail

FN9333 Rev.1.00

Page 39 of 99

Oct.1.20

10.3 ON_OFF_CONFIG (02h)

Definition: Configures the interpretation and coordination of the OPERATION command and the ENABLE pin.

Access: Paged

Data Length in Bytes: 1

Data Format: Bit Field

Type: R/W

Default Value: 17h (ENABLE pin control)

Default Setting: ENABLE pin control, active high, immediate off

10.4 CLEAR_FAULTS (03h)

Definition: Clears all fault status bits in all registers and releases the nPMALERT pin (if asserted) simultaneously.

If a fault condition still exists, the bit(s) reasserts immediately. This command does not restart a device if it is shut

down, it only clears the faults.

Access: Paged

Data Length in Bytes: 0

Data Format: N/A

Type: Write only

Command

ON_OFF_CONFIG (02h)

Format

Bit Field

Bit Position

Access

R/W

Function

See Following Table

Default Value

111

Bit Number

Purpose

Bit Value

Meaning

7:5

Not Supported

000

Not supported

4:2

Sets the source of enable

0XX

Output enables any time power is present

regardless of pin or OPERATION

command state.

101

Output enables from the enable pin only

110

Output enables from the OPERATION

command only.

111

Output enables from the enable pin AND

the OPERATION command. Both must be

set to enable.

Polarity of ENABLE pin

Active low

Active high

ENABLE pin action when commanding the

unit to turn off

Use the configured TOFF_DELAY and

TOFF_FALL settings.

Turn off the output immediately (decay with

PWM tri-state).

ISL68227IRAZ Datasheet(PDF) 39 Page - Renesas Technology Corp

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